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# KeyStore.ProtectionParameter

`public static interface KeyStore.ProtectionParameter`
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java.security.KeyStore.ProtectionParameter

Known indirect subclasses KeyProtection, KeyStore.CallbackHandlerProtection, KeyStore.PasswordProtection, KeyStoreParameter
KeyProtection | Specification of how a key or key pair is secured when imported into the Android Keystore system.
KeyStore.CallbackHandlerProtection | A ProtectionParameter encapsulating a CallbackHandler.
KeyStore.PasswordProtection | A password-based implementation of `ProtectionParameter`.
KeyStoreParameter | This class is deprecated. Use `KeyProtection` instead.

A marker interface for keystore protection parameters.

The information stored in a `ProtectionParameter` object protects the contents of a keystore. For example, protection parameters may be used to check the integrity of keystore data, or to protect the confidentiality of sensitive keystore data (such as a `PrivateKey`).

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